Baby acne ?

Fr

My son has a severe case of baby acne or what I think is baby acne it’s spreading to his chest neck and scalp and idk what to do his ped said to leave it but this was before it started getting bad .. I messaged his ped and the nurse told me I need to take him to urgent care but I feel like there not going to do anything for it. he has a appointment next Monday should I just wait or take him to urgent care 😓